Street-sweeping machine.



N. B. FEDERICI.

STREET SWEEPING MACHINE.

APPLICATION FILED AUG-29, 1914.

Patented Mar. 28, 1916.

4 SHEETS-SHEET 1.

4 102 ZZZefioJf. a

N. B. FEDERICI.

STREET SWEEPING MACHINE.

APPLICATION FILED AUG-29, 1914.

1,176,825. Patented Mar.28,1916;

'4 SHEETS-SHEET 2- v THE COLUMBIA PLANOGRAPH 60., WASHINGTON, D. C

N. B. FEDERICI.

STREET SWEEPING MACHINE.

APPLICATION FILED AUG-29,1914- Patented Mar. 28, 1916.

4' SHEETS-SHEET 3- l mun"- Fly-8 2 9 2 SW J Witnmm THB COLUMBIA PLANOGRAPH C0., WASHINGTON, D. c.

N. B. FEDERICI. STREET SWEEPING MACHINE.

APPLICATION men AUG.29, 1914.

4 SHEETS-SHEET 4- THE COLUMBIA PLANDGRAPH co., WASHINGTON, n. c.

UNITED STATES A NICOLAS BRUTO FE DERICI, OF BUENOS AIRES, ARGENTINA.

STREET-SWEEPING MACHINE.

Specification of Letters Patent. Patented Mar. 28, 1916- Application filed August 29, 1914. Serial No. 859,242.

' To all whom it may concern:

Be it known that I, NICOLAS BRUTO FED- ERICI, a subject of the King of Italy, residits neutral position, right angles to the 25 ing at N o. 2023 Charcas street, Buenos Aires, Argentina, have invented certain new and useful Improvements in Street Sweeping Machines, of which the following is a specification.

The present invention has reference to street-sweeping machines, and more particularly to that type of machine in which only a single rotary brush is employed.

It proposes certain hereinafter-described improvements in the mounting of the afore- 5 mentioned brush, and in the construction and An embodiment of the invention is illus-' trated in the accompanying drawing, whereof Figure 1 is a side elevation of the complete machine; Fig. 2 is a part-sectional plan view,

with the water tank omitted; Fig. 3 is a'longitudinal are transverse and longitudinal sections,

taken, respectively,

on lines 44 and 5-5, Fig.

2; Fig. 6 is a detail view of one of the parts included in the brush-raising mechanlsm; and Figs. 7 and 8 are detailsof one of the sprinkler heads and its controlling device.

The machine shown in said drawing is adapted to be drawn or propelled in any desired manner, and it consists, briefly, of a equipped with suitable front and rear wheels 2 and 3, mounted on axles 4 and 5. The rear wheels 3 are loose on their axle 5, and are provided with suitable clutch connections therewith, whereby their rotation is only transmitted to said axle under predetermined conditions.

In the construction represented, the hub of each of these wheels is provided with a clutch memher 6, which is adapted to engage a sliding clutch member 7, keyed to the adjacent porshaft 12 is suspended from a 13 that is journaled 4 bearing sleeves 14, (Fig. 4). These sleeves are supported by a pair of depending, U-

- of the frame. In consequence,

-gageme'nt in a series tion of the axle. The last-named clutch members are connected to the rear arms of L-shaped levers 8, which are pivoted at their apices to the side bars of the frame and which have the terminals of their inwardlyprojecting front arms connected to the rear ends of a pair of sliding, longitudinally-an ranged rods 9, the latter being operated in the manner subsequently explained. To force the pairs of clutch members into engagement, expansible' coil springs 10, which encircle the axle and act against the sliding clutch members, are utilized.

The cylindrical brush l1 tween the front and rear wheels, and its at its ends in a pair of shaped brackets 15, secured to the frame bars, and they are adapted to travel along said brackets when the brush-shifting mechanism is operated, their outer ends being connected to the brush shaft by means of pairs of angularly-arranged links 16 and 17, so that when the sleeves are turned, the brush-shaft will likewise be turned in unison therewith and in the same direction. To

the inner ends of the sald sleeves are attached upstanding arms 18, that serve to support an annular turntable 19 secured thereto, said table having a depending, annular guide flange or rib 20 formed on its under face which seats inan opening in a section of Fig. 2; Figs. 4 ,and5

bed-plate 21, fastened to the transverse bars will constitute a pivotal support for the turn-table, and since the latter is connected to the bearing sleeves which, in turn, support the shaft 13, said plate will also serve 'as the fulcrum about which the said shaft and, therefore,

the brush, are adapted to be turned or swung. This turning or swinging movement may be effected by means of any suitable device, that shown consisting of a vertical lever 22 which is fulcrumed upon a bracket 23, bolted to the front platform 24 of the machine directly adjacent the seat 25 for the driver, the lower end of the lever being connected to the front end of a horizontal rod 26, whose rear end is attached to one of the sleeves 14. The said lever is provided with a spring-controlled locking pawl 27 which is designed for interchangeable enof three notches 28, formed in an enlargement of the bracket 23,

is arranged be- 7 horizontal shaft the bed-plate the arrangement of the notches being such that when the pawl occupies the central notch, the brush will be disposed 'at right angles to the longitudinal axis of the machine, while when it occupies either of the end notches, the brush will be inclined in one direction or the other to said axis, according as lever 22 has been moved forward or backward.

The shaft 13 is driven from the rear axle throughthe agency of gearing, which, in the present instance, comprises a pair of sprocket chains 29 that pass around pairs of sprockets 30 and 31 secured, respectively, to said axle and to a short transverse shaft 32, the latter being journaled in a pair of strap brackets 33, which are arranged in spaced, parallel relation and are fastened at opposite ends to the cross-bars of the frame. Between the rear ends of said brackets, there is attached to the shaft 32 a gear 34, which meshes with a gear 35 mounted upon shaft 13, this gear 35 being likewise disposed between the brackets and mounted in such a way as to permit it to remain in line with gear 34 irrespective of the rocking movements imparted to its supporting shaft. Accordingly, the said gear 35. is made sufficiently thick to dispose the bracketsin close proximity to its opposite side faces, as represented in Fig. 4, whereby it is held against vertical angular displacement, and the wall of its-central opening is provided with a pair of oppositely located, cylindrical pins or studs 36 that project into a circumferential groove 37 formed in a spherical body 38, said body being keyed to shaft 13 and disposed within the afore-mentioned opening. As a result, the studs will act as pivots about which the spherical body may turn, when the bruslrswinging operation'is taking place, while at the same time the projection of said studs into the groove 37 insures the shaft being driven by said gear, said shaft passing through longitudinal slots 39, (Fig. 5),

formed in said brackets and, also, through openings in arms 18. To transmit the rota- "tion of shaft 13 to the brush-shaft 12, one

7 .end of the former is equipped with a sprocket 40, which is connected by a chain 41 with a sprocket 42 formed on or secured to one end of a sleeve 43, (Fig. 2), the other end of which is similarly provided with a second sprocket 44 that is connected by a chain 45 with a sprocket 46, secured to the adjacent end of the brush shaft. Sleeve 43 is loosely fitted upon a pin or pivot 47 mounted in the confronting ends of the adacent pair of links 16 and 17 and forming the connection between said ends.

As previously stated, the two pairs of clutch members 6 and 7, provided, respectively, on the rear wheels and rear axle, are out of engagement when the brush is disposed in its neutral position, and are only as aforesaid, the cam on the turn-table will engage the other cam, and will force the latter and the cross-piece 5O forward,thereby pulling the rods 9 in the same direction; the

movement of the rods,- in turn, serves to draw the front arms of the leversS forward, with the result that their rear arms move inward and carry the sliding clutch members 7 away from the fixed clutch members 6, against the action of thesprings 10. When the turn-table is'shifted to either side,,out of. the position just specified, its; camwill disengage the cam 49, whereupon springs 10 will be free to act upon the sliding clutch members and force them into engagement with the fixed clutch members, the levers 8' being moved in the reverse direction during that time, as will be understood.

In order to effect the raising of the brush above the surface of the vstreet, when in its neutral position, a rocking, U-shap'ed'frame or yoke'51 is preferably employed, this yoke being pivotally fastenedby clips 52, or in any other desired manner, to the bearing sleeves 14, (Figs. 2 and 3). The said yoke carries a roller 53 at its front end,"and is connected at the rear ends of its legs with an arcuate metal plate 54, that covers the upper portion of the brush, the said legs having attached to them depending straps or hangers 55 which, in turn, are joined byadjustable bolts 56 to the flanged reanedge of plate 54. The said cover plate is provided at its ends with cross-bars 57 which'are attached, intermediate their ends, to the links 17, so that when the rear end of the yoke is raised, the cover plate-and, consequently, its cross-bars 57, will be lifted, the latter carrying withthemthelinks 17 upon which the brush shaft is directly mounted. V This rocking of the yoke is produced 'by' means of a segmental track 58, which is traversed by the roller 53, said track being arranged transversely of the frameof the machine.

Accordingly, when the shaft 13 and bearing.

sleeves 14 are shifted to turn the brushfrom angled to neutral position, roller 53 will be caused to engage and ride downwardly along said track, whereby the front end of the yoke is depressed, and its rear end elevated, with the result that the brush is raised, as above described. 7 To facilitate thefloperation,- a counterweight 59 may provided on the yoke at any suitable point.

sprinkler heads may be of any suitable construction, and are represented as formed at The sprinkling attachment, with which the machine is provided, consists of a tank.

60, arranged longitudinally of the frame and supported upon uprights 61, to which it is secured in any desired manner. At its front end, the tank is provided with a series of outlet pipes 62,, three being here trolling the discharge of the water. The

one end with throats 65, through which the stems of the valves project, and at their, tops with throats 66 in which the ends of the pipes 62 fit, each of the throats 66 being formed with a bracket-like extension 67 to which the corresponding valve-operating lever 68 is pivoted; The said levers are so arranged as to PI'OjGCt toward thedrlvers 7 seat, and terminate in proximity thereto, so that any or all of them may be readily grasped and actuated.

The operation, in its entirety, is believed to be apparent from the foregoing and, hence, to require no further description.

I claim 1. In a street-sweepingmachine, the'combination, with a frame; of a brush centrally fulcrumed therein; mechanism for rocking said brush in either direction about its fulcrum alternatively to a position in which it is disposed at right angles to the longitudinal axis of said frame or to one in which it is oblique to saidaxis; brush-driving mechanism including a clutch; and connecting means between said brush and said clutch operable automatically consequent upon and simultaneously with the rocking of the brush from the first-named position to the second-named position to close said clutch and throw said driving mechanism into operation, and also operable automatically consequent upon and simultaneously with the rocking of the brush from said second-named position to said first-named position to open said clutch and throw said driving mechanism out of operation.

2. In a street-sweeping machine, the combination, with a frame, an angularly-shiftable shaft supported therein for movement alternatively to a position. in which it is disposed at right angles to the longitudinal axis of said frame, or to one in which it is oblique to said axis, and mechanism including a clutch for driving said shaft; of a brush suspended from said shaft for shifting movement in unison therewith; driving connections between said shaft and said brush; means for shifting said shaft; and connecting means between said shifting means and said clutch operable automatibination, with a frame,

be callyconsequent upon' and simultaneously with the shifting of said shaft from the first-named position to the second-named position to close said clutch and throw said driving mechanism into operation, and also operable automatically consequent ,upon and simultaneously with the shifting of said shaft from said second-named position to said first-named position to open said clutch and throw said driving mechanism out of operation.

3. In a street-sweeping machine, the combination of aframe provided at opposite sides with U-shaped brackets; a pair of alining bearing sleeves adapted to travel along said brackets; a turn-table connected to the inner ends of said sleeves; an angularlyshiftable shaft having its ends fitted in said sleeves; means for driving said shaft; a brush suspended from said sleeves for angular movement with the same and said shaft; driving connections between said shaft and said brush; operating means connected to said turn-table; and mechanism for throwing said shaft driving means into and out of operation during the movement of the turn-table.

4. In a street-sweeping machine, the comand an angularlyshiftable brush mounted therein for movement alternatively to a position in which it is disposed at right angles to the longitudinal axis of the frame, or to one in which it is oblique to said axis; of mechanism for driving said brush; mechanism for shifting is disposed at right angles to the longitudinal axis of the frame, or to one in which it is oblique to said axis; of mechanism for driving said brush; mechanism for shifting said brush; mechanism operable automatically upon said brush during and consequent upon its movement to one of such positions, to raise it bodily above the ground, and 0p erable automaticallyupon said brush during and consequent upon its movement to the other of such positions, to lower it bodily to the ground; and connections between said brush and said driving mechanism actuated automatically during and consequent upon the first-named movement of said brush for throwing said driving mechanism out of operation at the conclusion of such movement.

6. In a street-sweeping machine, the combination, with a frame and anangularlyshiftable brush mountedtherein; of mechanism' for shifting said brush embodying a anism for shifting said brush embodying a turn-table connected therewithfand means r for rotating said turn-table ;--mechanism' for driving. said brush; and mechanism operative by said turn-table during its movement for automatically throwing said driving mechanism out of operation.

7. In a street-sweeping machine, the-combination, with a frame and an :angularlyshiftable brush mounted therein; of mechanisni for shifting said brush embodying a turn-table connected therewith and provided with a cam, and means for rotating said anism'for shifting said brush embodying a turn-table connected therewith and provided turn-table; mechanism for driving said brush; and mechanism for throwing said driving mechanism out of operation during the movement of said turn-table,'the' lastnamed mechanism including an actuating element engageable by said'cam.

8. In astreet-sweeping machine, the combination, with a'frame and an hngularlyshiftable brush mountedthe'rein; of mechanism for shifting said brush; and mecha- V combination, with a frame and anangu- 'larly shiftable brush mounted therein; of

nism for automatically "raising said brush during its angular movement into one position, the last-named mechanism including a rocking yoke connected with said brush, and an element secured to said frame-and engageable by said yoke to rock thesame.

9. In a street-sweeping machine,the combination, with a frame, and an 'angu'larlymovable shaft mounted therein; of a brush suspended from said shaft for angular movement therewith; means for moving said shaft; and means for automatically raising said brush during its movement into one position, embodying a yoke having a rocking connection intermediate its ends with said shaft and connected at its rear-end with said brush, and a cam secured to said frame and engageable by the front end of said yoke.

10. In a street-sweeping machine, the comcreases bination, with 21" frame and an angularlyshi-ftable brush mounted therein of mechturn table connected therewith and provided clutch-shifting device, and an actuating ele- -ment to which said deviceis connected en- -:gageable by sa1d=cam.

11. In a=street-sweeping machine, the combination, with a frameand an angularlyshiftable brushmountedtherein; of mechwith cam; mechanism for driving said brush; and mechanism for throwing said driving mechanism out of operation during the movement of saidturn-table, the-last named mechanism' including an actuating l element provided with a cam engageable by l the-' first-named cam.

12. In a street sweeping machine, the

mechanism for shifting said brush embodying a turn-table connected therewith and provided with a cam; mechamsm for driving said brush, including a clutch; and mechanism'for throwing said driving mechanism Intestimony whereof I afiix my signature in presence of two witnesses.

Vitnesses:

J. H. ArNswoR'rH, E. BARTLEY.

*(topies oithispatent may be obtained for five cents each, by addressing. the- *Commissionerot I-a'tents, "-Washingtcn; 'D. O. 

